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首页> 外文会议>International Conference on Modern Circuits and Systems Technologies >Junctionless Carbon Nanotube Field-Effect Transistors as Gas Nanosensors for Low-Power Environment Monitoring Applications
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Junctionless Carbon Nanotube Field-Effect Transistors as Gas Nanosensors for Low-Power Environment Monitoring Applications

机译：无连接碳纳米管场效应晶体管作为用于低功耗环境监测应用的气体纳米调传料

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摘要

In this paper, the role of junctionless (JL) paradigm in boosting the gas sensing performance of carbon nanotube field-effect transistors (CNTFETs) is investigated. The gas-induced work function modulation is adopted as gas sensing principle. The computational study uses the non-equilibrium Green’s function simulation. The considered sensing metric is the ratio of change in drain current. It has been found that the CNTFET-based gas nanosensor exhibits improved sensitivity in subthreshold regime, which is very beneficial for ultra-low power gas sensing applications. A sensitivity analysis has also been performed while revealing the sensitivity trends versus the change in different gas nanosensor parameters. More importantly, the consideration of junctionless paradigm, which is beneficial in terms of simplifying the fabrication processes, is found efficient in improving the subthreshold sensitivity. The obtained results indicate that the JL CNTFET-based gas nanosensors can serve the cutting edge gas sensing applications.
机译：本文研究了连接（JL）范式在提高碳纳米管场效应晶体管（CNTFET）的气体传感性能方面的作用。气体诱导的工作功能调制被用作气体传感原理。计算研究使用非平衡绿色的功能模拟。所考虑的感测度量是漏极电流变化的比率。已经发现，基于CNTFET的气体纳米传感器在亚阈值制度中表现出改善的灵敏度，这对于超低功耗气体传感应用非常有益。还在揭示敏感性趋势与不同气体纳米传感器参数的变化相比，同时进行了灵敏度分析。更重要的是，在简化制造过程中，有利于简化制造工艺的无连接范例的考虑是有效的，在提高亚阈值敏感度方面有效。所获得的结果表明JL CNTFET基气体纳米传感器可以用于切削刃气体传感应用。

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